Patent EP-1882506-A1 (EP)
Inventor: MUGGLI FELIX
IPC: B01D3/00
Filed: 2007-07-24
Abstract: The entrance mechanism for feeding and distributing a gas stream (3) tangentially into a column or an apparatus (2), comprises a horn shaped channel piece comprising a flowed through outlet zone (13) consisting of an outlet surface, an entrance zone (11) and a middle zone (12), and a returning element (14). The gas stream after flowing through of the horn shaped channel piece at a periphery of the apparatus enters into a turbulence flow, which is rotated around an axle adjoining to a central axle of the apparatus. The entrance mechanism for feeding and distributing a gas stream (3) tangentially into a column or an apparatus (2), comprises a horn shaped channel piece comprising a flowed through outlet zone (13) consisting of an outlet surface, an entrance zone (11) and a middle zone (12), and a returning element (14). The gas stream after flowing through of the horn shaped channel piece at a periphery of the apparatus enters into a turbulence flow, which is rotated around an axle adjoining to a central axle of the apparatus and which falls together the central axle with a main direction of the flowing gas stream. The flowed through outlet zone of the channel piece gives an average direction of flow of the gas stream, extends along the periphery and is bent against the main direction, that the middle zone of the piece of channel or the entrance zone and the outlet zone are diffuser-like formed and that within a boundary region of the diffuser-like trained zones extends over less than one third of the periphery. The returning element is connected downstream after the outlet zone and is arranged between the central axle and the periphery for the influence of the turbulence. Between a basing and a top the returning element forms a strip, whose longitudinal extending is parallel to the central axle or is bent at an angle of 30[deg] against the turbulence. The returning element consists of a perforation and/or a longitudinal slot that are arranged as openings, which have a portion of 5-40% at the surface of the returning element. By the outlet surface and by the returning element an angle (B) of 30-150[deg] is extended around the central axle. The piece of channel in the area of the diffuser-like formed zones is divided into more number of diffuser-like partial channels. In the area of the piece of channel of the diffuser-like formed zones the surfaces of the flowed through cross sections extend by 50-150%. A limitation of the diffuser-like formed zones comprises a wall, which is formed by the periphery as well as three pieces of wall. A first piece of wall is formed crosswise, second is directly arranged and third is bent to the central axle. In a vertical adjustment of the central axle these three pieces of wall are upper horizontal, a vertical and/or a lower bent piece of wall. Related to the radial distance between central axle and the periphery, the radial width of the outlet zone at their outlet surface amounts to 40-60%. In the horn shaped channel piece in the case of two-phase gas streams, a disperse phase of higher density under utilization of its inertia can be partially separated. INDEPENDENT CLAIM is included for a column or apparatus with an entrance mechanism.